S-98038A282 1.062" ID x 2" OD ASTM F436 Type 1 Structural Washers

Key Features & Benefits at a Glance

• Superior Load Distribution – The 2" outer diameter and precise flat design evenly distribute clamping force, preventing surface damage and extending joint life in heavy-duty applications.
• Enhanced Durability & Hardness – With Rockwell C38 hardness, this washer maintains structural integrity under high stress, resisting deformation and wear over time.
• Precision Fit for 1" Screws – The 1.062" inner diameter ensures a secure, slop-free fit on 1" fasteners, reducing vibration loosening and improving assembly reliability.
• Compliant with Rigorous Standards – Manufactured to meet ASTM F436 Type 1 specifications, guaranteeing consistent quality, mechanical strength, and performance in industrial environments.
• Corrosion & Regulatory Compliance – Made from steel and compliant with RoHS 3 and REACH regulations, ensuring safety, environmental responsibility, and resistance to corrosive elements.
• Versatile Thickness Range – The 0.136-0.177" thickness provides flexibility for various gasketing and spacing needs while maintaining stability under compression.
• Ideal for Inch-Based Systems – Designed for inch measurement systems, facilitating easy integration into existing North American machinery and equipment designs.

Professional Applications & Engineering Value

This steel flat washer is engineered to address critical challenges in industrial settings, such as joint failure due to uneven pressure and corrosion-induced degradation. The ASTM F436 Type 1 compliance ensures it delivers reliable performance in heavy-duty applications, including construction machinery, automotive assemblies, and structural steel connections. Its Rockwell C38 hardness provides exceptional resistance to indentation and fatigue, while the precise 1.062" ID and 2" OD dimensions optimize load distribution, preventing bolt loosening and material crush. By utilizing inch system measurements and RoHS/REACH compliant materials, this washer supports sustainable, long-lasting installations that meet stringent industry regulations.

Specification Summary & Compliance

This flat washer features an inner diameter of 1.062", outer diameter of 2", and thickness range of 0.136-0.177", designed for use with 1" screw sizes. It conforms to ASTM F436 Type 1 standards for mechanical properties and dimensional accuracy, ensuring consistent performance in load-bearing applications. The washer is manufactured from steel with a hardness of Rockwell C38 and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety requirements.